Trolley-wheel.



G. H. DOWNS.

TROLLBY WHEEL.

APPLICATION FILED x5124. 1900.

947,436. Patented Jan. 25, 1910.

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STATE PATEN FFICE.

GEORGE HENRY DOWNS, OF NORTH POWDER, OREGON, ASSIGNOR 0F ONE-HALF TO WILLIAM E. GRACE, OF PORTLAND. OREGON.

TROLLEY-VVHEEL.

Specification of Letters Patent.

Patented Jan. 25, 1910.

Application filed March 24, 1908. Serial No. 423,003.

To all whom it may concern:

Be it known that I, Gnonon Hnnnr Downs, a citizen of the United States, and a resident of North Powder, Union county, State of Oregon, have invented a new and useful Improvement in 'lrolleyheels, of which the following is a specification, reference being bad to the accompanying drawings as constituting a part thereof.

My invention relates to the trolley-wheels of electric cars in connection with overhead trolley-wires, and has for its object to obtain a trolley-wheel with a wide flange arranged to prevent the wheel from leaving the trolley-wire, and at the same time to so contrive the wheel as to enable it to pass over the cross or stay wires by which the overhead trolley-wire is supported from the poles along the track.

I carry my object into effect by means of a trolley-wheel journaled intermediate of two rotatable sides constituting flanges for the trolley-wheel, and the rim of said flanges being arranged in the form of radially disposed spokes, so as to enable the trolleywheel to climb over cross suspending-wires, the parts being combined and operating as hereinafter fully described.

In the drawings: Figure 1 is a side elevation of the upper end of a trolley-pole provided with my improved trolley-wheel, the near side of which is removed; the view representing my trolley-wheel in the act of assing over a cross suspending-wire; and ig. 2 is a central transverse section of my trolley-wheel, also representing the same in the act of passing over a cross-wire.

The letters designate the parts described.

My trolley-wheel consists of two sides a, b, centrally perforated and non-rotatably mounted on a hollow axle-pin. Said axlepin consists of a central annular part cl, and reduced laterally projecting square portions 0, c, on which the sides are secured. The periphery of said central annular part (i is made with a groove (1', in which to receive ball-bearings e. A bolt 12, having threaded ends, and nuts j thereon fasten the parts together.

Intermediate of the sides a, b there is rotatably mounted on the ball-bearings, e, 6 wheel f, grooved on its interior face so as to provide a half seat for said ball-bearings e, and the outer face of the wheel f being made with a groove f, to receive the trolleywire. The rims of the sides a, b are divided into a. plurality of radial spoke-like sections 7, the inner faces h of which rim-portions are convexed, similarly to the facial construction of the rim of the present-style trolley-wheel. The spoke-shaped rim portions 9 of the sides a, b constitute the flange for the wheel f. The spoke-like rim-portions of the sides are kept in alinement by being non-rotatably mounted on said axle-pin.

Exterior of the sides a, b are provided washers 2', and on the threaded extremities of the axle-pin n are nuts j, 7;, arranged to receive between them the perforated upper end of the trolley-fork Z of the trolley-pole m. The annular part (Z is so arranged as to prevent binding of the wheel f when tightening the nuts j, L.

In running on the trolley-wire 0, the wheel 7' alone rotates, but as my trolley-wire approaches a cross-wire p, the rim-portions g of the sides a, b engage with said crossing wire, and the sides will be rotated as indicated by the arrow in Fig. 1. In other words, the spoke-like rim-sections g of the sides a, 7) just roll over the crossing wire 72, as it were; and under all circumstances said rim-sections of the sides a, Z) will operate to hold my trolley-wheel in place on the trolley-wire.

In Fig. 1, 9 represents a hole in the rim of the trolley-wheel f, through which to in troduce the ball-bearings e, the hole 9 being threaded and closed by a threaded plug.

Of course, the above given details of description may be varied without departing from the spirit of my invention, and 1 therefore do not con fine myself to said details.

I claim:

1. In combination with the fork of a trol- Icy-pole, a journal-pin having reduced square portions at its ends, an annular central part, a wheel rotatably mounted on such annular central part, and sides provided with square eyes mounted on said square portions of the journal-pin exterior of the wheel; the rim-portions of said sides being divided into a plurality of spoke-like projections adapted to straddle a cross wire and constituting the flanges for said wheel; and means for holding the sides in place on the journal-pin.

2. In combination with the fork of a trolley-pole, a journal-pin having square shankportions near its ends, an annular boss formed centrally on the journal-pin, a wheel rotatably mounted on such boss, sides provided with square eyes mounted on said square shank-portions exterior of the wheel, the rim-portions of said sides being divided into a plurality of spoke-like projections, adapted to straddle a cross wire, and constituting the flanges for said wheel, and nuts on the extremities of the journal-pin.

3. In combination with the fork of a trolley-pole, a journal-pin having square shankportions near its ends, an annular boss formed centrally on the journal-pin, a wheel rotatably mounted on such boss, ball-bearings interposed between the bearing faces of said boss and said wheel, sides provided with square eyes mounted on said square shank-portions exterior of the wheel, the rim-portions of said sides being divided into a plurality of spoke-like projections, adapted to straddle a cross wire, and constituting the flanges for said wheel, and nuts on the extremities of the journal-pin.

GEORGE HENRY DOWVNS.

l/Vitnesses W. R. PEARSON, V. A. WEBB. 

